The multi-colored photons that might change quantum information science

The team demonstrates that photons can become an accessible and powerful quantum resource when generated in the form of color-entangled quDits.

Caltech-led engineers solve longstanding problem in photonic chip technology

Stretching for thousands of miles beneath oceans, optical fibers now connect every continent except for Antarctica. With less data loss and higher bandwidth, optical-fiber technology allows information to zip around the world, bringing pictures, video, and other data from every corner of the globe to your computer in a split second. But although optical fibers are increasingly replacing copper wires, carrying information via photons instead of electrons, today